Luna NRT-250 FPGA-Driven LiNbO3 Polarization Tracker
FPGA-driven polarization tracker based on an integrated-optic lithium niobate waveguide controller for fast, endless SOP tracking.
- Insertion loss
- < 3dB
- PDL
- < 0.3 dB
- Optical return loss
- > 50dB
- Optical power handling
- <20 dBm
Overview
The Luna NRT-250 Polarization Tracker uses the same integrated-optic lithium niobate (LiNbO3) waveguide polarization-controller device as the NRT-2500 for fast polarization response. In the NRT-250, the tracker is driven by a field-programmable gate array (FPGA), which gives it a faster response than the NRT-2500.
The unit provides endless polarization control. Luna's tracking algorithm tracks the state of polarization (SOP) without dropouts or glitches. This suits new applications and prototype systems.
The tracker has an open architecture, so users can tune its performance for a specific application. For example, a custom error signal can be built from four A/D converter inputs, or the algorithm parameters can be adjusted with the Tracker optimizer program. The manufacturer has discontinued this product.
Key Features
- Very fast and reliable polarization tracking
- Analog or digital electrical feedback signaling
- Tracks to maximize or minimize feedback signal
- Custom footprint, features and applications possible
- Standard wavelength 1550nm (C&L bands), other 1310nm and 1060nm available upon request
- FPGA-driven tracker
- Integrated-optic lithium niobate (LiNbO3) waveguide polarization controller
- Endless polarization tracking
Specifications
| Insertion loss | < 3dB |
|---|---|
| PDL | < 0.3 dB |
| Optical return loss | > 50dB |
| Optical power handling | <20 dBm |
| Operating wavelength |
1.55 microns (C- and L-bands)
Other 1310nm and 1060nm available upon request
|
| Optical connectors | FC/UPC, FC/APC, SC |
| Tracking speed |
<15 µsec
Closed loop in tracking mode
|
|---|
| Power inputs | ± 65V, ± 5V, 3.3V |
|---|---|
| Communication interface | RS-232, various digital interfaces per customer requirements |
| Dimensions | 2” x 10.5” or customization per customer requirements |
|---|
Related Products
Benchtop LiNbO3 polarization control platform with seven built-in functions, including tracking, scrambling, spinning and depolarizing.
Reset-free polarization tracker module that holds a stable output SOP against input fluctuations, with internal or external feedback.
Benchtop polarization stabilizer that holds a stable linear output SOP and recovers from input polarization changes in under 5 ms.
Polarization stabilizer that holds a stable output SOP by maximizing or minimizing an optical or electrical feedback signal, with reset-free tracking.
Deterministic polarization controller and polarimeter that generates, maintains, scrambles and analyzes any state of polarization regardless of input SOP.